Enhancement of efficiencies for tandem green phosphorescent organic light-emitting devices with a p-type charge generation layer
[Display omitted] The operating voltage of the tandem green phosphorescent organic light-emitting device with a 1,4,5,8,9,11-hexaazatriphenylene-hexacarbonitrile layer was improved by 3% over that of the organic light-emitting device with a molybdenum trioxide layer. The maximum brightness of the ta...
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| Veröffentlicht in: | Materials research bulletin 2014-10, Vol.58, p.141-144 |
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The operating voltage of the tandem green phosphorescent organic light-emitting device with a 1,4,5,8,9,11-hexaazatriphenylene-hexacarbonitrile layer was improved by 3% over that of the organic light-emitting device with a molybdenum trioxide layer. The maximum brightness of the tandem green phosphorescent organic light-emitting device at 21.9V was 26,540cd/m2. The dominant peak of the electroluminescence spectra for the devices was related to the fac-tris(2-phenylpyridine) iridium emission.
•Tandem OLEDs with CGL were fabricated to enhance their efficiency.•The operating voltage of the tandem OLED with a HAT-CN layer was improved by 3%.•The efficiency and brightness of the tandem OLED were 13.9cd/A and 26,540cd/m2.•Efficiency of the OLED with a HAT-CN layer was lower than that with a MoO3 layer.
Tandem green phosphorescent organic light-emitting devices with a 1,4,5,8,9,11-hexaazatriphenylene-hexacarbonitrile or a molybdenum trioxide charge generation layer were fabricated to enhance their efficiency. Current density–voltage curves showed that the operating voltage of the tandem green phosphorescent organic light-emitting device with a 1,4,5,8,9,11-hexaazatriphenylene-hexacarbonitrile layer was improved by 3% over that of the corresponding organic light-emitting device with a molybdenum trioxide layer. The efficiency and the brightness of the tandem green phosphorescent organic light-emitting device were 13.9cd/A and 26,540cd/m2, respectively. The current efficiency of the tandem green phosphorescent organic light-emitting device with a 1,4,5,8,9,11-hexaazatriphenylene-hexacarbonitrile layer was lower by 1.1 times compared to that of the corresponding organic light-emitting device with molybdenum trioxide layer due to the decreased charge generation and transport in the 1,4,5,8,9,11-hexaazatriphenylene-hexacarbonitrile layer resulting from triplet–triplet exciton annihilation. |
| doi_str_mv | 10.1016/j.materresbull.2014.04.045 |
| format | Article |
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The operating voltage of the tandem green phosphorescent organic light-emitting device with a 1,4,5,8,9,11-hexaazatriphenylene-hexacarbonitrile layer was improved by 3% over that of the organic light-emitting device with a molybdenum trioxide layer. The maximum brightness of the tandem green phosphorescent organic light-emitting device at 21.9V was 26,540cd/m2. The dominant peak of the electroluminescence spectra for the devices was related to the fac-tris(2-phenylpyridine) iridium emission.
•Tandem OLEDs with CGL were fabricated to enhance their efficiency.•The operating voltage of the tandem OLED with a HAT-CN layer was improved by 3%.•The efficiency and brightness of the tandem OLED were 13.9cd/A and 26,540cd/m2.•Efficiency of the OLED with a HAT-CN layer was lower than that with a MoO3 layer.
Tandem green phosphorescent organic light-emitting devices with a 1,4,5,8,9,11-hexaazatriphenylene-hexacarbonitrile or a molybdenum trioxide charge generation layer were fabricated to enhance their efficiency. Current density–voltage curves showed that the operating voltage of the tandem green phosphorescent organic light-emitting device with a 1,4,5,8,9,11-hexaazatriphenylene-hexacarbonitrile layer was improved by 3% over that of the corresponding organic light-emitting device with a molybdenum trioxide layer. The efficiency and the brightness of the tandem green phosphorescent organic light-emitting device were 13.9cd/A and 26,540cd/m2, respectively. The current efficiency of the tandem green phosphorescent organic light-emitting device with a 1,4,5,8,9,11-hexaazatriphenylene-hexacarbonitrile layer was lower by 1.1 times compared to that of the corresponding organic light-emitting device with molybdenum trioxide layer due to the decreased charge generation and transport in the 1,4,5,8,9,11-hexaazatriphenylene-hexacarbonitrile layer resulting from triplet–triplet exciton annihilation.</description><identifier>ISSN: 0025-5408</identifier><identifier>EISSN: 1873-4227</identifier><identifier>DOI: 10.1016/j.materresbull.2014.04.045</identifier><language>eng</language><publisher>United States: Elsevier Ltd</publisher><subject>A. Organic compounds ; A. Thin films ; B. Luminescence ; B. Optical properties ; BRIGHTNESS ; CARBON NITRIDES ; COMPARATIVE EVALUATIONS ; CURRENT DENSITY ; CYANIDES ; D. Electrical properties ; ELECTRIC CONDUCTIVITY ; ELECTRICAL PROPERTIES ; ELECTROLUMINESCENCE ; LAYERS ; LIGHT EMITTING DIODES ; MATERIALS SCIENCE ; MOLYBDENUM OXIDES ; NITRILES ; THIN FILMS ; TRIPHENYLENE ; TRIPLETS</subject><ispartof>Materials research bulletin, 2014-10, Vol.58, p.141-144</ispartof><rights>2014</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c365t-3c73b887534141c3d4c33ca493cfb69183eeff69572778965f04cadbac5875bd3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S002554081400230X$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>230,314,776,780,881,3537,27901,27902,65534</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/22420584$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Yoo, Byung Soo</creatorcontrib><creatorcontrib>Jeon, Young Pyo</creatorcontrib><creatorcontrib>Lee, Dae Uk</creatorcontrib><creatorcontrib>Kim, Tae Whan</creatorcontrib><title>Enhancement of efficiencies for tandem green phosphorescent organic light-emitting devices with a p-type charge generation layer</title><title>Materials research bulletin</title><description>[Display omitted]
The operating voltage of the tandem green phosphorescent organic light-emitting device with a 1,4,5,8,9,11-hexaazatriphenylene-hexacarbonitrile layer was improved by 3% over that of the organic light-emitting device with a molybdenum trioxide layer. The maximum brightness of the tandem green phosphorescent organic light-emitting device at 21.9V was 26,540cd/m2. The dominant peak of the electroluminescence spectra for the devices was related to the fac-tris(2-phenylpyridine) iridium emission.
•Tandem OLEDs with CGL were fabricated to enhance their efficiency.•The operating voltage of the tandem OLED with a HAT-CN layer was improved by 3%.•The efficiency and brightness of the tandem OLED were 13.9cd/A and 26,540cd/m2.•Efficiency of the OLED with a HAT-CN layer was lower than that with a MoO3 layer.
Tandem green phosphorescent organic light-emitting devices with a 1,4,5,8,9,11-hexaazatriphenylene-hexacarbonitrile or a molybdenum trioxide charge generation layer were fabricated to enhance their efficiency. Current density–voltage curves showed that the operating voltage of the tandem green phosphorescent organic light-emitting device with a 1,4,5,8,9,11-hexaazatriphenylene-hexacarbonitrile layer was improved by 3% over that of the corresponding organic light-emitting device with a molybdenum trioxide layer. The efficiency and the brightness of the tandem green phosphorescent organic light-emitting device were 13.9cd/A and 26,540cd/m2, respectively. The current efficiency of the tandem green phosphorescent organic light-emitting device with a 1,4,5,8,9,11-hexaazatriphenylene-hexacarbonitrile layer was lower by 1.1 times compared to that of the corresponding organic light-emitting device with molybdenum trioxide layer due to the decreased charge generation and transport in the 1,4,5,8,9,11-hexaazatriphenylene-hexacarbonitrile layer resulting from triplet–triplet exciton annihilation.</description><subject>A. Organic compounds</subject><subject>A. Thin films</subject><subject>B. Luminescence</subject><subject>B. Optical properties</subject><subject>BRIGHTNESS</subject><subject>CARBON NITRIDES</subject><subject>COMPARATIVE EVALUATIONS</subject><subject>CURRENT DENSITY</subject><subject>CYANIDES</subject><subject>D. Electrical properties</subject><subject>ELECTRIC CONDUCTIVITY</subject><subject>ELECTRICAL PROPERTIES</subject><subject>ELECTROLUMINESCENCE</subject><subject>LAYERS</subject><subject>LIGHT EMITTING DIODES</subject><subject>MATERIALS SCIENCE</subject><subject>MOLYBDENUM OXIDES</subject><subject>NITRILES</subject><subject>THIN FILMS</subject><subject>TRIPHENYLENE</subject><subject>TRIPLETS</subject><issn>0025-5408</issn><issn>1873-4227</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNqNUD1P5DAQtdAhsQf8B4urs9ixHWfpEHAHEhIN1JYzmSReJc7KNqDt-Ok4txSUSPM0zfuYeYRccLbmjFeX2_VkE4aAsXkdx3XJuFyzZdQRWfFai0KWpf5FVoyVqlCS1Sfkd4xbxpistV6Rjzs_WA84oU907ih2nQOHPiPSbg40Wd_iRPuA6OlumGNGjoP__NBb74COrh9SgZNLyfmetvjmIMvfXRqopbsi7XdIYbChR9qjx2CTmz0d7R7DGTnu7Bjx_Gufkpe_d88398Xj07-Hm-vHAkSlUiFAi6autRKSSw6ilSAEWLkR0DXVhtcC8-nVRulS63pTqY5JsG1jQWVR04pT8ufgO8fkTASXEAaYvUdIpixlyVQtM-vqwIIwxxiwM7vgJhv2hjOzNG625nvjZmncsGVUFt8exJj_eHMYlphcJbYuLCnt7H5i8wnya5QZ</recordid><startdate>20141001</startdate><enddate>20141001</enddate><creator>Yoo, Byung Soo</creator><creator>Jeon, Young Pyo</creator><creator>Lee, Dae Uk</creator><creator>Kim, Tae Whan</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>OTOTI</scope></search><sort><creationdate>20141001</creationdate><title>Enhancement of efficiencies for tandem green phosphorescent organic light-emitting devices with a p-type charge generation layer</title><author>Yoo, Byung Soo ; Jeon, Young Pyo ; Lee, Dae Uk ; Kim, Tae Whan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c365t-3c73b887534141c3d4c33ca493cfb69183eeff69572778965f04cadbac5875bd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>A. Organic compounds</topic><topic>A. Thin films</topic><topic>B. Luminescence</topic><topic>B. Optical properties</topic><topic>BRIGHTNESS</topic><topic>CARBON NITRIDES</topic><topic>COMPARATIVE EVALUATIONS</topic><topic>CURRENT DENSITY</topic><topic>CYANIDES</topic><topic>D. Electrical properties</topic><topic>ELECTRIC CONDUCTIVITY</topic><topic>ELECTRICAL PROPERTIES</topic><topic>ELECTROLUMINESCENCE</topic><topic>LAYERS</topic><topic>LIGHT EMITTING DIODES</topic><topic>MATERIALS SCIENCE</topic><topic>MOLYBDENUM OXIDES</topic><topic>NITRILES</topic><topic>THIN FILMS</topic><topic>TRIPHENYLENE</topic><topic>TRIPLETS</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yoo, Byung Soo</creatorcontrib><creatorcontrib>Jeon, Young Pyo</creatorcontrib><creatorcontrib>Lee, Dae Uk</creatorcontrib><creatorcontrib>Kim, Tae Whan</creatorcontrib><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>Materials research bulletin</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yoo, Byung Soo</au><au>Jeon, Young Pyo</au><au>Lee, Dae Uk</au><au>Kim, Tae Whan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Enhancement of efficiencies for tandem green phosphorescent organic light-emitting devices with a p-type charge generation layer</atitle><jtitle>Materials research bulletin</jtitle><date>2014-10-01</date><risdate>2014</risdate><volume>58</volume><spage>141</spage><epage>144</epage><pages>141-144</pages><issn>0025-5408</issn><eissn>1873-4227</eissn><abstract>[Display omitted]
The operating voltage of the tandem green phosphorescent organic light-emitting device with a 1,4,5,8,9,11-hexaazatriphenylene-hexacarbonitrile layer was improved by 3% over that of the organic light-emitting device with a molybdenum trioxide layer. The maximum brightness of the tandem green phosphorescent organic light-emitting device at 21.9V was 26,540cd/m2. The dominant peak of the electroluminescence spectra for the devices was related to the fac-tris(2-phenylpyridine) iridium emission.
•Tandem OLEDs with CGL were fabricated to enhance their efficiency.•The operating voltage of the tandem OLED with a HAT-CN layer was improved by 3%.•The efficiency and brightness of the tandem OLED were 13.9cd/A and 26,540cd/m2.•Efficiency of the OLED with a HAT-CN layer was lower than that with a MoO3 layer.
Tandem green phosphorescent organic light-emitting devices with a 1,4,5,8,9,11-hexaazatriphenylene-hexacarbonitrile or a molybdenum trioxide charge generation layer were fabricated to enhance their efficiency. Current density–voltage curves showed that the operating voltage of the tandem green phosphorescent organic light-emitting device with a 1,4,5,8,9,11-hexaazatriphenylene-hexacarbonitrile layer was improved by 3% over that of the corresponding organic light-emitting device with a molybdenum trioxide layer. The efficiency and the brightness of the tandem green phosphorescent organic light-emitting device were 13.9cd/A and 26,540cd/m2, respectively. The current efficiency of the tandem green phosphorescent organic light-emitting device with a 1,4,5,8,9,11-hexaazatriphenylene-hexacarbonitrile layer was lower by 1.1 times compared to that of the corresponding organic light-emitting device with molybdenum trioxide layer due to the decreased charge generation and transport in the 1,4,5,8,9,11-hexaazatriphenylene-hexacarbonitrile layer resulting from triplet–triplet exciton annihilation.</abstract><cop>United States</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.materresbull.2014.04.045</doi><tpages>4</tpages></addata></record> |
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| subjects | A. Organic compounds A. Thin films B. Luminescence B. Optical properties BRIGHTNESS CARBON NITRIDES COMPARATIVE EVALUATIONS CURRENT DENSITY CYANIDES D. Electrical properties ELECTRIC CONDUCTIVITY ELECTRICAL PROPERTIES ELECTROLUMINESCENCE LAYERS LIGHT EMITTING DIODES MATERIALS SCIENCE MOLYBDENUM OXIDES NITRILES THIN FILMS TRIPHENYLENE TRIPLETS |
| title | Enhancement of efficiencies for tandem green phosphorescent organic light-emitting devices with a p-type charge generation layer |
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